be bound to; junior to; take... seriously; as long as;
help out; in all; be attached to; at one time
一个电动机线圈的电阻是5Ω，当它接在220V的电压下正常工作时，通过的电流是0.6A，求：
If you have a chance to study abroad, you must catch it and remember “Change always ______ about new possibilities. ”
日本是一个多火山的国家，有许多火山，下列火山中属于日本的是
